smtpd_helo_required = yes 
smtpd_helo_restrictions = permit_mynetworks, permit_sasl_authenticated, reject_non_fqdn_hostname, reject_invalid_hostname, permit
smtpd_sender_restrictions = permit_mynetworks, permit_sasl_authenticated, reject_non_fqdn_sender, reject_unknown_sender_domain, permit
smtpd_client_restrictions = permit_sasl_authenticated, check_client_access mysql:/etc/postfix/mysql-virtual_access.cf, reject_rbl_client zen.spamhaus.org, reject_rbl_client bl.spamcop.net
smtpd_recipient_restrictions = reject_unauth_pipelining, permit_mynetworks, permit_sasl_authenticated, reject_unauth_destination, reject_unlisted_recipient, check_policy_service inet:127.0.0.1:60000